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Grade 9 Math
math
Question | Answer |
---|---|
what is the formula for the volume of a cube? | length × width × hight |
what is the formula for curcumfrence of a circle? | πr² or πd (π = pi) |
What is the surface area formula for a sphere | 4(πr²) |
How do you figure out if a pattern is an exponential relation? | repeated multiplication (y=3ⁿ) |
How do you fiqure out if a pattern is a quadratic relation? | there is no pattern (y=x³) |
How do you fiqure out if a pattern is a linear relation | repeated addition (y=3x) |
What is first difference? | differences between y values in a table of values that has evenly spaced x values. |
What is slope? | steepness of a line rise/run |
What is continous data? | variable real numbers (speed, temperature, ect..) usually used with a connected line if graphed |
What is discrete data? | variable whole number (students, pages, ect..) usually has points on a graph instead of connected lines |